The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2007
Filed:
Jun. 02, 2004
Jun Yamashita, Tomi, JP;
Tomohide Tanaka, Tomi, JP;
Atsushi Shimizu, Tomi, JP;
Naotoshi Tamai, Tomi, JP;
Motoyasu Nakamura, Tomi, JP;
Jun Yamashita, Tomi, JP;
Tomohide Tanaka, Tomi, JP;
Atsushi Shimizu, Tomi, JP;
Naotoshi Tamai, Tomi, JP;
Motoyasu Nakamura, Tomi, JP;
Nissin Kogyo Co., Ltd., Nagano-Ken, JP;
Abstract
A plunger pump, includes: a plunger pump unit including a pump chamber and a plunger for pressing a hydraulic fluid in the pump chamber to perform a discharging operation of the hydraulic fluid; a motor; and a cam portion driven by the motor to rotate and press the plunger. The cam portion has at least two discharge regions for pressing the plunger and a suction region formed between the discharge region. The plunger performs the discharging operation two times or more by one rotation of the cam portion.